In a rare planetary conjunction, five major planets namely, Mercury, Venus, Mars, Jupiter and Saturn, in our solar system will be visible brightly in a row from Friday. These planets can be seen through the naked eye alone if the sky is clear. The best time to witness them is before dawn. This conjunction is special as it includes Mercury, which is generally obscured from the view by the bright light of the Sun. Not just this, these planets will also be visible in the order in which they are positioned from the Sun.